Home / 6,476.40-9,709.65-4,279.68

Finding the Fourth Proportional to 6,476.40, 9,709.65 and 4,279.68

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Solution

The fourth proportional to 6,476.40, 9,709.65 and 4,279.68 is: 6,416.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,476.40 : 9,709.65 = 4,279.68 : x
  2. Step 2: Convert to fraction form
    6,476.40/9,709.65 = 4,279.68/x
  3. Step 3: Cross multiply
    6,476.40x = 9,709.65 × 4,279.68
  4. Step 4: Simplify right side
    6,476.40x = 41,554,194.91
  5. Step 5: Solve for x
    x = 41,554,194.91/6,476.40
  6. Step 6: Final answer
    x = 6,416.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.